#Update bash to 4.4
echo "Old bash version:"
bash --version |grep "GNU bash"
mv bash4.4 /usr/local/bash4.4
oldbash=`which bash`
mv $oldbash $oldbash.bak
ln -s /usr/local/bash4.4/bin/bash $oldbash
echo "New bash version:"
bash --version |grep "GNU bash"
mv bashtop /usr/local/bin/
echo "Enjoy bashtop!"